39 lines
1.4 KiB
Python
39 lines
1.4 KiB
Python
from uuid import uuid4
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from citext import CIText
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from sqlalchemy import Boolean, Column
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from sqlalchemy.dialects.postgresql import UUID
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from sqlalchemy.orm import backref, relationship
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from teal.db import CASCADE_OWN
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from ereuse_devicehub.db import db
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from ereuse_devicehub.resources.models import Thing
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from ereuse_devicehub.resources.user.models import User
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class Transfer(Thing):
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"""
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The transfer is a transfer of possession of devices between
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a user and a code (not system user)
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"""
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id = Column(UUID(as_uuid=True), primary_key=True, default=uuid4)
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code = Column(CIText(), default='', nullable=False)
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closed = Column(Boolean, nullable=False, default=False)
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date = Column(db.TIMESTAMP(timezone=True))
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description = Column(CIText(), default='', nullable=True)
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lot_id = db.Column(
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UUID(as_uuid=True),
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db.ForeignKey('lot.id', use_alter=True, name='lot_trade'),
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nullable=True,
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)
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lot = relationship(
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'Lot',
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backref=backref('transfer', lazy=True, uselist=False, cascade=CASCADE_OWN),
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primaryjoin='Transfer.lot_id == Lot.id',
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)
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user_from_id = db.Column(UUID(as_uuid=True), db.ForeignKey(User.id), nullable=True)
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user_from = db.relationship(User, primaryjoin=user_from_id == User.id)
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user_to_id = db.Column(UUID(as_uuid=True), db.ForeignKey(User.id), nullable=True)
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user_to = db.relationship(User, primaryjoin=user_to_id == User.id)
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